title: Simultaneous measurements of instantaneous heart rate and breathing activity in newly hatched chicks.
mesh_terms: D000375:Aging / Q000502:physiology*; D000818:Animals; D002642:Chick Embryo / Q000502:physiology; D002645:Chickens / Q000254:growth & development*; D006339:Heart Rate / Q000502:physiology*; D015656:Respiratory Mechanics / Q000502:physiology*